 | C4X-132227 | N/A | Impurity | |
| Propafenone Impurity 27 |
 | C4X-13223 | 22525-95-7 | Impurity | |
| Propafenone EP Impurity C |
 | C4X-13224 | 91401-73-9 | Impurity | |
| Propafenone EP Impurity D |
 | C4X-13225 | 165279-79-8 | Impurity | |
| Propafenone EP Impurity E |
 | C4X-13226 | 1329643-40-4 | Impurity | |
| Propafenone EP Impurity F |
 | C4X-13227 | 1346603-80-2 | Impurity | |
| Propafenone EP Impurity G |
 | C4X-13228 | 487-26-3 | Impurity | |
| Propafenone EP Impurity H |
 | C4X-132412 | 118-91-2 | Impurity | |
| Mesalazine EP Impurity L |
 | C4X-132413 | 2516-96-3 | Impurity | |
| Mesalazine EP Impurity M |
 | C4X-132414 | 96-97-9 | Impurity | |
| Mesalazine EP Impurity N |
